Group 1 - Tianyue Advanced (02631) saw a significant stock price increase, rising over 12% to a new high of 54.55 HKD, with a trading volume of 259 million HKD [1] - The company has strategically positioned itself in the silicon carbide (SiC) substrate market, offering a product matrix of 6/8/12 inch SiC substrates, including high-purity semi-insulating, conductive P-type, and conductive N-type substrates [1] - The company has established business partnerships with over half of the top ten global power semiconductor manufacturers and is actively expanding its overseas market presence [1] Group 2 - The company's high-quality conductive SiC substrates are gaining traction in international markets, with collaborations established with renowned companies such as Infineon, Bosch, and ON Semiconductor in the power electronics and automotive electronics sectors [1] - The applications of the company's products span across electric vehicles, AI data centers, and photovoltaic systems, indicating a diverse market reach [1]